Method and structure for optimizing atomization quality of a low
pressure fuel injector
    3.
    发明授权
    Method and structure for optimizing atomization quality of a low pressure fuel injector 失效
    优化低压燃油喷射器雾化质量的方法和结构

    公开(公告)号:US5449114A

    公开(公告)日:1995-09-12

    申请号:US293102

    申请日:1994-08-19

    摘要: A method for improving the atomization quality from a fluid injector includes the steps of inducing a first vortex turbulence in the fluid flowing past a first protrusion in a supply orifice having a flow axis therein, guiding the fluid through a turbulence cavity and then out through a first metering orifice having another protrusion positioned downstream from the first protrusion by a distance y measured generally parallel to the flow axis and by a distance x measured generally perpendicular to the flow axis. The droplet size of the fluid exiting from the metering orifice is reduced by sizing the x and y dimensions to position the first vortex turbulence within the turbulence cavity operatively adjacent to and upstream from the first metering orifice. In a preferred embodiment, the ratio of x/y is greater than 0.5 and less than 5. A fuel injector nozzle practicing this process is also provided.

    摘要翻译: 用于从流体注射器改进雾化质量的方法包括以下步骤:在流过其中具有流动轴线的供应孔中的第一突起中流动的流体中引起第一涡流紊流,引导流体通过湍流腔,然后通过 第一计量孔口具有另一个突起,其位于第一突出部的下游一段距离y处,该距离大体上平行于流动轴线测量,距离x大致垂直于流动轴线。 通过调整x和y尺寸来减小从计量孔排出的流体的液滴尺寸,以将第一涡流湍流定位在与第一计量孔口可操作地相邻和上游的湍流空腔内。 在优选实施例中,x / y的比率大于0.5且小于5.还提供了实施该过程的燃料喷射器喷嘴。